1926crane_rev0
TRANSCRIPT
Cranes and Derricks
29 CFR 1926 - Subpart CC
In this course, we will discuss the following: Scope of the standard Ground conditions Assembly/disassembly Power line safety Inspections Fall protection Operator and signal person qualifications Signals Tower cranes
Objectives 1926.1400
Applies to power-operated equipment, when used in construction, that can hoist, lower and horizontally move a suspended load.
Applies to the same equipment when used with attachments.
Scope 1926.1400
Scope 1926.1400(c)
Specific exclusions Machinery while it is converted or adapted
for non-hoisting/lifting use» Such as power shovels, excavators and
concrete pumps
Limited exclusions Digger derricks, articulating/knuckle-boom
truck cranes
Digger derricks Equipped with auger for drilling holes to set poles
Handling materials installed or removed from poles
Equipment Not Covered 1926.1400(c)(4)
Equipment Not Covered 1926.1400(c)(17)(i)
Articulating/knuckle-boom truck crane Delivering materials to construction site
Transferring materials from truck crane to ground
Equipment Not Covered 1926.1400(c)(17)(ii)
Articulating/knuckle-boom truck crane Delivering materials to construction site
Transferring materials from truck crane onto structure using fork/cradle at end of boom
Equipment Covered 1926.1400(c)(17)(iii)(A)–(C)
Articulating/knuckle-boom truck crane Holding, supporting or stabilizing material to facilitate
construction activity
Handling prefabricated components
Handling structural steel members
Competent person – A person who is capable of identifying existing and predictable hazards … and who has authorization to take prompt corrective measures to eliminate them.
Qualified person – A person who, by possession of a recognized degree, certificate, or professional standing, or who by extensive knowledge, training and experience, successfully demonstrated an ability to solve/resolve problems relating to the subject matter, the work, or the project.
Definitions 1926.1401
Dedicated spotter (power lines) – person who meets requirements of 1926.1428 (signal person qualifications) Responsibility to watch separation between power
line and equipment
Ensure communication with operator that minimum approach distance not breached
Definitions 1926.1401
Ground Conditions 1926.1402(c)(1)
Controlling entity Provide adequate conditions
» Firm, drained, and graded
» So that with the use of supporting materials, the equipment manufacturer’s specifications for adequate support and degree of level of the equipment are met.
Ground Conditions 1926.1402(c)(2)
Inform user of the equipment and operator of the location of hazards beneath the equipment set-up area.
Voids
Tanks
Utilities
Assembly/Disassembly 1926.1403
Two options Manufacturer procedures
Employer procedures
Crane assembly and disassembly procedures
Comply with manufacturer or employer procedures
Supervision – Competent-qualified person = A/D director
» Knowledge of procedures
» Review of procedures
» Ensure crew members understand their tasks and hazards associated with tasks
Tower crane Pre-erection inspection
» Each crane component inspected by qualified person
Assembly/Disassembly 1926.1403, .1404, .1435
Assembly/Disassembly 1926.1404(h)
Site and ground conditions must be adequate
When required, block under outrigger floats
Power Line Safety 1926.1407(f)
Power lines presumed energized Unless utility owner/operator confirms lines
deenergized
Visibly grounded at worksite
Power Line Safety 1926.1408
Identify the work zone Demarcating boundaries (such as with flags, or a
device such as a range limit device or range control warning device) or
Define the work zone as the area 360 degrees around the equipment, up to equipment’s maximum working radius.
Could you get within 20 feet of
power line?YES NO
Option #1 De-energize and ground
Encroachment prevention measures
(equipment operations)
Option #3Ask utility for voltage and use Table A (with minimum clearance distance)
Option #220-foot clearance
No further action
• Planning meeting• If tag lines used - Non-conductive• Elevated warning lines, barricade or line of signs
•PLUS (Choose one):
• Proximity alarm, spotter, warning device, range limiter, or insulating link
Power Line Safety 1926.1408
Table A – Minimum Clearance Distances
Voltage (nominal, kV, Minimum clearance alternating current) distance (feet)
up to 50 10over 50 to 200 15over 200 to 350 20over 350 to 500 25over 500 to 750 35over 750 to 1,000 45over 1,000 (as established by the utility owner/
operator or registered professionalengineer who is a qualified person with respect to electrical power transmission and distribution)
Must Show:• Staying outside zone is infeasible
• Infeasible to deenergize and ground
Intentionally Working Closer Than Table A Zone
All of the following are required:
1. Power line owner – sets minimum approach distance
2. Planning meeting – minimum procedures - Dedicated spotter
- Elevated warning line or barricade
- Insulating link/device
- Nonconductive rigging
- Range limiter (if equipped)
- Nonconductive tag line (if used)
- Barricades - 10 feet from equipment
- Limit access to essential workers
- Prohibit non-operator workers from touching
above insulating link
- Properly ground crane
- Deactivate automatic re-energizer
- Insulating line cover-up installed
Power Line Safety 1926.1411(a)–(b)
Equipment traveling under power line with no load Boom/mast and boom/mast support system lowered
sufficiently to meet requirements
Clearances in Table T maintained
Effects of speed and terrain on equipment movement
Dedicated spotter
Precautions for traveling in poor visibility
Power Line Safety 1926.1411
Table T – Minimum Clearance Distances While Traveling With No Load
Voltage (nominal, kV, While traveling – Minimum alternating current) clearance distance (feet)
up to 0.75 4over .75 to 50 6 over 50 to 345 10over 345 to 750 16over 750 to 1,000 20over 1,000 (as established by the utility owner/operator
or registered professional engineer who is aqualified person with respect to electricalpower transmission and distribution)
Electric Utilities 1926.1400(g) Employers whose employees are qualified to
perform power distribution and transmission work Deemed compliance with §§1926.1407 through
1926.1411 when performing work covered by Subpart V work in accordance with 1910.269(p)
Visual inspection by competent person during each shift
Monthly inspection by competent person – with documentation
Inspections 1926.1412(d)–(e)
Other inspections required under this section done by qualified person – with documentation
Annual/comprehensive
Post-assembly
Repaired/adjusted equipment
Modified equipment
Severe service
Equipment not in regular use
Inspections 1926.1412(a)–(c)
Cranes
Type of Inspection Who InspectsModified or
repaired/adjustedQualified person
Post-assembly Qualified person
Shift Competent person
Monthly Competent person
Annual Qualified person
Inspections 1926.1412(a)–(c)
Required and operational at all times
Includes: Crane level indicator
Boom stops (except for derricks and hydraulic booms)
Jib stops (except for derricks)
Foot pedal brakes with locks
Hydraulic outrigger jacks/hydraulic stabilizer jacks with integral holding device
Equipment on rails with rail clamps/stops
Horn
Safety Devices 1926.1415(a)–(b)
Operational Aids 1926.1416(b)
Operations must not begin unless the listed operational aids are in proper working order, except when being repaired and a specified temporary alternative measure is used.
Category 1 Boom hoist limiting device, luffing jib limiting device, and
anti two-blocking device » Must be repaired no later than 7 calendar days after the
deficiency occurs.
Category 2 Boom angle or radius indicator, boom length indicator,
load weighing devices, jib angle indicator, outrigger/stabilizer position sensor/monitor, and hoist drum rotation indicator
» Must be repaired no later than 30 calendar days after the deficiency occurs.
Operational Aids 1926.1416(d)–(e)
When manufacturer procedures are unavailable, the employer must develop and ensure compliance with procedures necessary for safe operation of equipment and attachments.
Procedures for the operational controls must be developed by a qualified person.
Procedures, including rated capacities, recommended operating speeds, special hazard warnings, instructions, and operator’s manual, must be available in the cab at all times for use by the operator.
Operations 1926.1417(b)–(c)
Operator must not engage in any practice or activity that diverts their attention while engaged in operating the equipment, such as the use of cellular phones (other than when used for signal communications).
Operations 1926.1417(d)
Fall Protection 1926.1423(c)
Boom walkways
Steps, handholds, ladders, grabrails, guardrails, and railings
Fall Protection 1926.1423(d)–(k)
Personal fall arrest and positioning device
systems
Anchorage criteria
Training
When employees are hooking, unhooking, or guiding the load, or in the initial connection of a load to a component/structure and are within the fall zone: Materials being hoisted must be rigged Hooks with self-closing latches must be used
Only employees receiving a load are permitted within the fall zone when a load is being landed.
Keeping Clear of the Load 1926.1425(c)–(d)
Rigging 1926.1404(r)(1) & .1425(c)(3) Rigging work done by qualified rigger
During assembly/disassembly
When workers are within the fall zone to handle a load
Foundations and structural supports Designed by manufacturer or professional engineer
Plumb tolerance Verified by qualified person
Climbing procedures
Pre-erection inspection By qualified person
Monthly/annual inspection
Tower Crane Requirements 1926.1435
• Option 1: Accredited testing
organization
• Option 2: Audited employer program
• Option 3: U.S. military
• Option 4: Government entity
Testing Criteria
• Knowledge (written test):– Controls/performance
characteristics– Calculate capacity– Preventing power line
contact– Ground conditions &
equipment support– Use and locate info in
operating manual– Appendix C subjects
• Practical test
Operator Qualification/Certification 1926.1427
Portable Valid
Accredited Testing Organization
YES * 5 years
Audited Employer Program
NO 5 years
U.S. Military License
NO * Set by issuing entity
Government License
NO *
Valid only in jurisdiction
Set by issuing entity, not > 5 years
Subject to state and local requirements and whether or not the military/state training meets accredited requirements.
Operator Qualification/Certification 1926.1427
Operator qualification or certification not required: Equipment with rated hoisting/lifting capacity of
2,000 pounds or less
Derricks
Sideboom cranes
Operator trained on safe operation of equipment
Operator Qualification/Certification 1926.1427(a)
Employer must provide the qualification or certification at no cost to operators.
Operator Qualification/Certification 1926.1427(a)(4)
Language Requirements 1926.1427(h)
Tests under this section may be administered in any language the operator candidate understands.
Operator’s certificate must note the language in which the test was given.
Signal person provided Load not in view of operator View in direction of travel is obstructed Due to site specific safety concerns
Types of signals Hand Voice Audible New signals
Hand signal chart posted on equipment or at site
Signals 1926.1419 and .1422
Hand Signal Charts 1926.1422
Signal Person Qualifications 1926.1428(c)
Know and understand type of signals used
Competent is using signals
Basic understanding of equipment operation and limitations
Know and understand relevant requirements
Demonstrate knowledge through an oral or written test and practical test
Option Documentation Portable
Option (1):
Third party qualified evaluator
Yes Yes
Option (2):
Employer’s qualified evaluator
Yes No
Signal Person Qualifications 1926.1428(c)
Overhead powerlines
Signal persons
Operators
Competent persons/qualified persons
Crush/pinch points
Tag-out
Training Requirements 1926.1430(a)–(f)
Training Administration 1926.1430(g)
Employees trained and evaluated on their understanding of the information provided
Refresher training
Training provided at no cost to employee
In this course, we discussed the following: Scope of the standard Ground conditions Assembly/disassembly Power line safety Inspections Fall protection Tower cranes Operator and signal person qualifications Training
Summary 1926.1400
Thank You For Attending!
Final Questions?1-800-NC-LABOR(1-800-625-2267)
www.nclabor.com